Knitting-machine.



- PATBNTED MAY 28,1907.

A. v. GRQUPE. KNITTING MACHINE. APPLICATION FILED PEB'.14, 1906.

2 SHEETS-SHEET 1.

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' ATTORNEY.

PATENTED MAY 28, 1907, A. v. GROUPR' KNITTING MACHINE. APPLICATION FILEDFEB. 14, 1906.

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ANDREW V. GROUPE, OF PHILADELlHIA, PENNSYLVANIA, .ASS'lGNOlt TO E..JENCKES MAN FACTURING COMPANY, OF PAW TUCKET, RIIODE lSliAND,

A- CORPORATION ,OF RHODE ISLAND.

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' To wllwhom it ma ycomcerrtk Be it known that 1-, ANnREw V. endure, acitizen of the United States',"residingat Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented-certain -new'anduseful Improvements inKnittin which the following is a spei wherebytherequired needles may be moved. so into and outof operative relationto the knit- -Zting cams d the knitting of the heel and toe parts ofstoc s or other fashioning op eration.

' The invention con ists inithe novel constructionand combinations ofparts which will lbs hereinafter fully described and claimed. 1

In the drawings-: Figure iris aplan view of the cam cylinder of acircular knitting machine 1 providediiithneedle pickingdevicesembodyoing my invention. Fig. 2 is asectional yview, as on the line 2- 2ofFigQLincluding the needle cylinder, oneof its needles and the {bedplate of the machine. Fig. 3 is an elevation ofthe needle pickingdevices and the ad 5 justable supportftherefonsaid support being partlybroken away. I Fi 4 visa sectional view as onthe line 4 4 of hig. %3.Fig. 5-is a sectiiiziisil view as, onthe line B S-oi Fig. 3; 'Fig. Elisadevelopment of a portion ottheino teriorof the cam cylinder,showingth'e' knitting canis and the position of the notched in-- herends of the needle picking arms during the operation ofnarrowingi'thefabric. Fig.

I 7 isa view'similarto- Fig. 6, showing the po ,sition of thenotchedinner ends of the needle picking arms duringftheoperation ofwidening the fabric. f

1 designates vaportion of the cam cylinder, 3 a portion of the bed platein which the cam '50 cylinder is rotatably mounted, 6 the needle Icylinder and Tom of the needles. The cam cylinder is provided with theoppositely arranged stitchcams 8 and 9, the raising cams Specificationof Letters Patent. Application filed February 14,1906.- seen No. 300,977

Included in machines of this class is a I i.Kl\llTTlNG-MAQHNE.

Patented May 28, 1907.

I 13 and 14, the upper earns 15 and 1.6 and the central cam 17, whereby,during the actuation of the cam cylinder, the needles are acted upon toeffect the knitting operation in the usual well known manner.

The "construction and operationoi' the parts thus far are wellkiiown andno detailed description or illustration thereof is deemed necessaryherein..

Secured to the cam cylinder 1 IS a bracket 18 provided with averticalguideway 19 to which is fitted a slide or support 20. This slide20 is adapted to be moved vertically to two positions within theguideway 19, a pin 21 projecting fixedly from the slide and out throughan opening 22 in the bracket 18 being adapted to take against the wallof said openin to limit the movement of the slide in either irection.The slide 20 is maintained in either the up or down position b T a ball23 arranged within an opening in the racket 18 and forced toward theslide and into depressions 24. and 25 therein by the action of a spring26. When the slide is in the up position, shownin Fig. 2, the ball isseated 'in the depression 25; when the slide is in the down moved backagainst the spring 26 by the wall 7 between the-depressions 24 and 25.

The slide 20 carries twoneedle picking arms 29 and 30, having their freeinner ends projecting into the cam cylinder 1. The free end of the upperarm 29 is provided with oppositely disposed needle engaging notchesadapted to engage certain needles to lower them relative to the knittingcams; and the free end of the lower arm 30 is provided with. oppositelydisposed needle-engaging notches adapted to engage certain needles toraise them relative to the knitting cams.

Projecting from the slide-'20 adjacent to the outer end oi the upperneedle picking arm-29 are lugs 41 and 42 between which is arranged ahlockelia which ispivoted to said lugs on an ample of about forty-fivedegrees to the vertica The block 43 is'adapted to move on said pivo tnlconnection in the direc-v tion indicated by the fulhhne arrow in Fig. 3,a stop 44 on the block 43 beingadapted to take againstthe support 20 tolimit the movement of the block in the reverse direction.

' tion.

pressure of a needle butt against the free with the stop 46 by theaction of a spring 50 lugs on an angle of about forty-five degreesadapted to take against the support 20 to line arrow in Fig. 3, a stop46*on the block "re'ction. Thus it will be seen that the.

.preventing the movement of the arm 29 rection indicated by thefull-line arrow in Embracing the block 43 is the outer end of the needlepicking arm 29, said arm being pivotally.connected to the block 43 on aline intersecting and extending at right angles to the pivotalconnection of the block 43 with the support 20. The arm 29 is adapted to'move on its pivotal connection with the block 43 in the directionindicated by the dotted line arrow in Fig. 3, a stop 46 on the block 43being adapted to engage the arm 29 to limit its movement in the reversedirec- Thus itwill be seen that the horizontal notched end of the arm 29in one direction will cause the arm to move on its pivotal conneetionwith the block 43 in the direction indicated by the dotted-line arrow inFig. 3, the stop 44 preventing the movement of the block 43 about itspivotal connection with the support 20; and that horizontal pressure ofa needle butt against the notched end of the arm 29 in the oppositedirection will cause the arm 29 and block 43 to move as a unit on thepivotal connection of the block 43 with'the support 40 in the directionindicated by the full-line arrow in Fig. 3, the stop 46 aboutits'pivotal connection with the block 43.

The arm 29 is maintained normally elevated with the stop 44 inengagement with the slide 20 andthe arm 29 in engagement extendingbetween the arm 29 and a projecting pin 51 on the'slide 20, whereby thearm 29 is returned to the position shown in the drawin s after beingmoved in either direction in lowering the needles.

Projecting from the slide 20 adjacentto the outer end of the lowerneedle picking arm 30 are lugs 41 and 42 between which is arranged ablock 43 which-is pivoted to said to the vertical. The block 43 isadapted to move on a said pivotal connection in the di- Fig. 3,. a stop44 on the block 43 being limit the movement of the bloc verse direction.i

Embracing the block 43 is the outer end of the needle picking arm 30,said arm being pivotally connected to the block 43 on a lineintersecting and extending at right angles to the pivotal conncction ofthe block 43 with the support 20. The arm 30 is adapted to move on itspivotal connection with the block 43 in the direction indicated by thedotted r in the re- 43 being adapted to engage the arm 30 to limit itsmovement in the reverse d1-.

horizontal pressure of a needle butt against the free notched end of thearm 30 in. one direction will cause the arm to move on its pivotalconnection with the block 43 in the direction indicated by thedotted-line arrow in Fig. 3, the stop 44 preventing the movement of theblock 43 about its pivotal connection with the support 20; and thathorizontal pressure of a needle butt against the notched end of the arm30 in the o'ppoT site direction will cause the arm 30 and the block 43to move as a unit on the pivotal con-- nection of the block 43 with thean 3011; 20 in the direction indicated by the full line arrow inFig. 3,the stop 46 preventing the movement of the arm 30 about-its pivotalconnection with the block 43.

The arm 30 is maintained normally in the position shown with the stop 44in engagement with the slide 20 and the arm 30 in engagement with thestop 46* by the action of a spring 50 extending between the arm 29 andYa pro ecting pin 51 on the slide 20, whereby the arm 30 is returned tothe position shown in the drawings after bein moved in either directionin raising the needles.

From the foregoing description it will be seen that each arm 29 and 30has two separated pivotal connections with its support,

and that the axes of said connections are arranged on inclines withrelation to the axis of the cam cylinder. that the free end of the upperarm 29 is movable in downwardly-diverging paths on its pivotalconnections and that during the turning of the arm about the axis of oneof its connections it is prevented from turning about the axis of theother of its connections and that the free end of the lower arm 30 ismovable in upwardly-diverging paths on its pivotal connections, and thatduring the turning of the arm about the axis of one of its connectionsit is prevented from turning about the axis of the other of: itsconnections.

The inner notched ends of the picker arm 29 and 30 swing outwardly fromwithin the cam cylinder during the movement of said arms on theirpivotal connections, and the operation of the notched end of each armengaging the n'eedles and shifting them into or out of operativerelation to the knitting cams is well known in this art.

In Figs; 6 and 7 I have illustrated by a dotand-dash line the positionof the butts of the active needles .and by a two-dot-anddash line thepositionof the butts of the inactive needles 1n (passing the-I1otchedf*'ends of the arms 29 an 30.

. During ordin'arycircular knitting, such for Further, it will be seenow the path of the butts of the needles and they are unaiiected thereby,After the com-.

pletion of the leg portion, one half of thecircular series of needles ismoved to the inactive osition as is usual and the slide 20 is raise vtothe position shown in Fig. 2. In,

this position the slide, the notched end of the arm 29' is abovethe pathof the butts of mention, the notched end of the arm 30 engagijnthe buttof the first needle in its path and oves said needle to the inactiveposition, said arm moving in either direction indicated by the arrows inFig. 7, according to the direction of movement of the cam cylinder. Thisoperation is continued until the required narrowing of the fabric hasbeen ef- 'fected. The slide is then moved to the 135-:

down position to bring the notched end of the arm below the path of theactive nee and out of operative relation to the activeposition .tated'to efiect the knitting of the foot port1on' of the stocking,

dies and to bring the notched end of the arm 29 into the path of theinactive needles. The cam cylinder is now again reciprocated, and

' during its movement in either direction, the

notched end "of the arm 29 engages the butt of the first needle in itspath and moves said needle back to the active position, said arm movingin the direction of either arrow in Fig. 8, according to the directionof movement of the cam cylinder. This operation is continued until allthe inactive needles are re turned to the active position; whereupon thehalf of the circular series of needles previously moved out of actionare returned to the and the cam cylinder is roafter which the toeaortion is produced similarly to the heel portion, this operation ofmoving certain needles into knitting cams in the manufacture ofstockings being common and well known in this art.

I claim- 1. In a knitting machine. the combination with the camcylinder, of a su port thereon, a member pivotally connecte to saidsupport, a picker arm pivotally connected to said member and providedwith oppositely disposed needle engaging portions, means to preventmovement of said member when the picker arm is moved in one direction,and means to prevent relative motion between said member and arm whenthe picker arm is moved in another direction.

2. Ima knitting machine, the coi'nbination with the cam cylinder, of asupport thereon, a member pivoted to said support, a picker arm pivotedto said member and provided with oppositely disposed needle engagingportions; a stop to prevent movement of said member when the picker armis moved upon its pivot, and a stop to prevent movement of the pickerarm relatively to the member when the latter is moved upon its pivot 3.In a knitting n'lachine, the combination with the can'i cylinder, of asupport thereon, a member pivoted to said support, a picker arm pivotedto said member and provided with oppositely disposed needle engagingportions; a stop to prevent movement of said member when the picker ismoved on its pivot, a' stop to picker arm relatively to the member whenthe latter is moved upon its pivot, and means for yieldingly maintainingsaidmember and arm in engagement with their respective sto s.

.n testimony whereof I affix my signature inpresence of two witnesses.

ANDREW" V. GRO UPE.

Witnesses:

Geo. W. REED, W. W. Cnnsr.

prevent movement of the

